#include <unistd.h>
#include <string.h>
#include <termios.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <stdio.h>
int mySerialOpen (const char *device, const int baud)
{
  struct termios options ;
  speed_t myBaud ;
  int     status, fd ;

  switch (baud)
  {
    
    case    9600:	myBaud =    B9600 ; break ;
    case  115200:	myBaud =  B115200 ; break ;
  }
 
  if ((fd = open (device, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK)) == -1)
    return -1 ;

  fcntl (fd, F_SETFL, O_RDWR) ;

  // Get and modify current options:

  tcgetattr (fd, &options) ;

  cfmakeraw   (&options) ;
  cfsetispeed (&options, myBaud) ;
  cfsetospeed (&options, myBaud) ;

  options.c_cflag |= (CLOCAL | CREAD) ;
  options.c_cflag &= ~PARENB ;
  options.c_cflag &= ~CSTOPB ;
  options.c_cflag &= ~CSIZE ;
  options.c_cflag |= CS8 ;
  options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG) ;
  options.c_oflag &= ~OPOST ;

  options.c_cc [VMIN]  =   0 ;
  options.c_cc [VTIME] = 100 ;	// Ten seconds (100 deciseconds)

  tcsetattr (fd, TCSANOW, &options) ;

  ioctl (fd, TIOCMGET, &status);

  status |= TIOCM_DTR ;
  status |= TIOCM_RTS ;

  ioctl (fd, TIOCMSET, &status);

  usleep (10000) ;	// 10mS

  return fd ;
}

void sendString (const int fd, const char *s)
{ 
	int ret;
	ret = write (fd, s, strlen (s));
	if (ret < 0)
		printf("Serial Puts Error\n");

}


int getString (const int fd,char * buffer)
{
  int n_read = read(fd,buffer,32);


  return  n_read;
}

char getChar(const int fd){
	char x;

	if(read(fd,&x,1)!=1){
		return -1;
	}
	return x;
}
